74106ead26
libstdc++-v3 configure checks whether old glibc inline definitions of isnan would conflict with the libstdc++-v3 definitions and works around them if so. But if g++ 6.x build A is used to build another g++ 6.x B, the configure step for B will pick up the math.h installed alongside A instead of the glibc version. configure will then assume that the workaround isn't necessary, leaving B with a broken cmath. isinf already worked around this. This patch extends the same fix to isnan. (Thanks to George for the fix.) libstdc++-v3/ 2017-03-10 George Lander <george.lander@arm.com> * acinclude.m4 (glibcxx_cv_obsolete_isnan): Define _GLIBCXX_INCLUDE_NEXT_C_HEADERS before including math.h. * configure: Regenerate. From-SVN: r246025 |
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| include | ||
| libsupc++ | ||
| po | ||
| python | ||
| scripts | ||
| src | ||
| testsuite | ||
| ChangeLog | ||
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| ChangeLog-2016 | ||
| Makefile.am | ||
| Makefile.in | ||
| README | ||
| acinclude.m4 | ||
| aclocal.m4 | ||
| config.h.in | ||
| configure | ||
| configure.ac | ||
| configure.host | ||
| crossconfig.m4 | ||
| fragment.am | ||
| linkage.m4 | ||
README
file: libstdc++-v3/README New users may wish to point their web browsers to the file index.html in the 'doc/html' subdirectory. It contains brief building instructions and notes on how to configure the library in interesting ways.